Gas-burner



- (No Model.)

. J. A. WILSON.

. GAS BURNER. No. 275,311. Patented Apr. 3, 1883.

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UNITED STATES PATENT FFICE.

JOHN A. WILSON, OF BALTIMORE, MARYLAND.

GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 275,311, dated April 3, 1883 Application filedDetober 26, 1882.

To all whom it may concern:

Be it known that I, JOHN A. WILsoN, a cit-i zen of the United States, residing at Baltimore, and State of Maryland, have invented certain new and useful Improvements in Gas-Burners,

of which the following is a specification, reference being had therein to the accompanying drawings.

My invention consists in a gas-burner constructed in two separable parts, each provided with its own lava tip, said tips being slotted or pierced with openings ofdifl'erent sizes relatively to each other, and the arrangement being such that the part having the tip with the narrowest slot shall deliver the gas to the tip having the larger slot or burning orifice, whereby the gas issues from the regular burning-tip at a less pressure than it issues from the tip having the narrower slot.

My invention also consists in a gas-burner made in two separable parts, each provided with its own lava tip, the tip constituting the regular burner having a slot of the usual capacity, and the tip upon the other or lower part being provided with a slot much narrower than the other, wherebythe burning capacity of the latter may be tested separately and compared with'the capacity of the other'tip when the two parts are united and the gas delivered thereto through the lower tip.

Referring to the drawings, Figure 1 is a view of a gas-bracket and the dual burner, the two parts of the latter being separate. Fig. 2 is a vertical section of the dual burner, and Fig. 3 is a side view ofsame.

The letterA designates the lower part of the dual burner, the lower end of which has the usual inside or female screw for attachment to a gas-chandelier, pendant, or bracket, 13. The upper end of this lower part has an exterior or male screw, 0, and a small lava tip, d, is inserted in the top thereof. This comprises a complete ordinary burner, but is here used only for the purpose oftest or comparison.

The upper part, E, of the dual burner has itslower end, f, provided with an inside screw for attachment to the exterior screw, 0, of the lower part. The upper end of the upper part has a large lava tip, 9, with a slit, which constitutes the burner proper, and when the two parts are together a chamber, h, is formed between the two lava tips. The lower lava tip (No model.)

serves as the small supply-opening to the chamber.

To illustrate the design of the burner it may bestated the lower small lava tip may be what is known as a one-foot burner-that is, one in which the slit dis ofsuch fineness as to consume under a low pressure but one cubic foot of gas per hour-while the upper orlarge lava tip may be a six-foot burner.

It will be seen that both burner tips and slits are exactly alike, except as to size or capacity of the slit for thedischarge of gas. This is important for the reason that the small opening or slit (1, which, when the upper part, E, is on, supplies gas to the chamber, is to be utilized to make a flame directly at the slit to show the amount of light which the quantity of gas passing the said small slit will produce when burned direct-1y therefrom. By this means the economy in the use of burners of the description herein referred to may be readily demonstrated, as a comparison may be made of the amount of light which the same quantity of gas will produce when burned at the two different points--that is, burned directly at the small slit or test-burn eror, after passing through said smallopening, burned at the large tip or burner proper. By this construction I secure the usual advantage of getting a larger flame than ordinary withoutoonsuming any more gas; and I achieve the desired object, as I can readily demonstrate the aforesaid advantage. In doing this the followingis the procedure: The dual burner having been attached to the chandelier or bracket, the upper part, E, is unscrewed and removed from the lower part, A. The cock 1' is then turned to give a full head of gas, and the small tip or test-burner, d, is lighted to-show the size of the flame. The gas is then turned off, the up per part, B, is again attached to its position, the cock is turned to give a full head of gas, as before, thus allowing the gas to passthe small slit and issuefrom the burner proper, and then said burner-tip g is lighted, whereupon the increased size of the flame will be manifest.

Heretofore I have described the small tip or test-burner and the large tip or burner proper as havinga slit. Thisis the well-known batswing burner. It should here be stated that the particular form of opening is immaterial. Instead of a slit there may be two oblique orifices, which constitute the well-known fish tail burner. In fact, any of the usual forms of opening may be substituted for the slit. The essential thing is that the same form of opening must be used in both the test-burner and the burner proper, and that the opening in the former must be considerably smaller than that in the latter, so that when both are used the gas will issue from the large opening of the burner proper under a verylow pressure.

The great advantage of my invention is in the fact that I make use of separate lava tips for each portion of the two-part burner. By this means I prevent the heating of the gas by conduction from the metal tip, therchyavoiding the expansion of the gas and its consequent excessive escape.

I am aware that aburner has heretofore been provided with an escape-opening below the regular burner and having a less capacity; or, in other Words, allowing the escape of gas at a higher pressure than that exerted at the upper tip or regular burner, and I do not therefore broadly claim such a device.

I do not claim a dual burner for gas-that is, a burner made in two parts-for such is old and well known; nor do I claim a dual gasburner when the lower section is formed of metal, with one or more minute openings for checking the rushing of gas to the upper section of a gas-burner formed wholly of metal, or of metal with a lava tip, as such is old and well known. The aforesaid constructions are disclairned, because it is impossible to secure with them the results secured by the use of 5 my invention.

In myinvention thelower section is made of metal and is provided with a lava tip having a minute opening or incision, so that when it is desired to test the flow of gas by lightingit 40 the tip does not become intensely heated and the metal section carrying the tip is not heated by transmission of heat, and therefore the gas is not heated and rarefied. These lower sections, as now constructed, are made entirely of 5 metal, and if used to test the gas by lighting, the metal instantly becomes intensely heated, and likewise heats and expands the gas, utterly defeating the very object of my invention, which is to test the gas in its normal or usual 50 flow from the meter to the main burner.

What I claim isv The combination,in a gas-burner, of an upper or main section and a lower section contained within the main section, each of said 55 sections carrying a lava tip having unequal gas-discharge openings, substantially as and for the purposes specified.

In testimony whereof I aflix my signaturein presence of two witnesses.

JOHN A. IVILSON. Witnesses:

M10. '1. MADDOX, JOHN E. MoRRIs. 

